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2Addicts | BMW 2-Series forum Technical Topics DIY and Coding Discussions Bimmercode - Expert Amplifier Coding section w/ alternate HK EQ curves?

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      06-29-2020, 07:25 PM   #23
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Quote:
Originally Posted by TrboMike View Post
2017 M240 with HK and I had the setting. Wow! F45 has so much more bass, I might put off my speaker upgrade plans.

Hm now I gotta find a day I'm not lazy and try F39.
Agreed. I was surprised that the stock subs put out as much bass as the do without distorting using the F45 curve. I think they could actually sell more HK cars if they made it the default setting.

I'm still throwing a 12" in the trunk, however.
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      06-30-2020, 02:57 PM   #24
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Thanks for the heads up, mine is now set to F45 and sounds so much bettter 👍🏻
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      07-10-2020, 02:30 PM   #25
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I finally got around to do this and set it to F45... interesting for sure. I wish someone with some measuring devices could run some tests through these. F45 sounds cleaner but I can definitely hear some missing mids. I have ghost replacement woofers and this definitely hits them harder.
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      07-25-2020, 12:31 AM   #26
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I tried the F45 EQ setting on my F87.
I already had a small powered sub in my trunk along with the coaxial JLs in the rear which gave me plenty of satisfaction over the stock system.
Now with this F45 EQ, the whole system is way too boomy, the bass basically muddies everything.
Way too much boost below 100hz imo.
I might play with the settings a little to see if I can find a setting I like, but will most likely set it back to F87.
I can imagine it being better for stock systems though.
Nice find btw.
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      08-04-2020, 02:14 PM   #27
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So I’ve rolled back to the F87 (new F22) settings.
Immediately noticed the subdued bass, and highs seemed slightly brighter.
With the sub in the trunk, it is much easier to control bass with this setting and it hits much tighter with a little adjustment.
It was an interesting experiment playing with the EQ coding but I’m most happy with the default setting.
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      08-10-2020, 12:49 AM   #28
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I tried the f45 settings on my m235i today. Shocking how much better the entire system sounds. 100% improvement. Car should have come from the factory this way.

Also, make sure you update your integration level with ISTA & Icom. I had factory 2014 coding and initially I was unable to see the different EQ settings in bimmercode expert mode.
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      08-11-2020, 08:53 AM   #29
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Quote:
Originally Posted by matrixhunter View Post
I tried the f45 settings on my m235i today. Shocking how much better the entire system sounds. 100% improvement. Car should have come from the factory this way.

Also, make sure you update your integration level with ISTA & Icom. I had factory 2014 coding and initially I was unable to see the different EQ settings in bimmercode expert mode.
Interesting. Do you have any aftermarket speakers?
I have the rear JL coaxials and a small powered sub in the trunk and the F45 setting was almost unbearable due to the bass overtaking/muddying the sound.
Have you tried the F87/new F22?
It was definitely an improvement for me with better clarity and flatter EQ curve
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      08-17-2020, 06:20 AM   #30
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WoW, I really wasn't expect much of a difference but you've discovered a real hidden gem here..

A lot more clarity, with more vibrant heights- F45 has my vote...

BimmerCode - the gift that keeps on giving

However, keep in mind guys, the F45 HK hardware and F22/87 are engineered differently (See below).

It sounds subjectively better with the F45 coding because the it seems to have turned up the heights, in the front and rear speakers, a setting that's beneficial to a station wagon layout, like the F45 but I'm not sure it's properly optimized for the F22/87 chassis.. It need more seat time..

Hmm.. Decisions, decisions..


F45 vs F22/87
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      08-22-2020, 12:22 AM   #31
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Very interested in this. I have a 2020 with the HK system. Seems like both F39 and F45 are recommended but mostly everyone says they're running F45? Does that one sound better or is it just the first one everyone tried? Thanks!
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      08-23-2020, 12:29 PM   #32
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Quote:
Originally Posted by kianf22 View Post
Very interested in this. I have a 2020 with the HK system. Seems like both F39 and F45 are recommended but mostly everyone says they're running F45? Does that one sound better or is it just the first one everyone tried? Thanks!
Try a few different ones while listening to a c.d. Listen to the same track to guage the soundstage you like best. I like bass so i went with f45 because it hits the hardest on the subs.
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      08-23-2020, 12:56 PM   #33
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Quote:
Originally Posted by Mehim View Post
Quote:
Originally Posted by kianf22 View Post
Very interested in this. I have a 2020 with the HK system. Seems like both F39 and F45 are recommended but mostly everyone says they're running F45? Does that one sound better or is it just the first one everyone tried? Thanks!
Try a few different ones while listening to a c.d. Listen to the same track to guage the soundstage you like best. I like bass so i went with f45 because it hits the hardest on the subs.
Thank you! will do
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      08-26-2020, 02:51 AM   #34
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Quote:
Originally Posted by nearwater4me View Post
Interesting. Do you have any aftermarket speakers?
I have the rear JL coaxials and a small powered sub in the trunk and the F45 setting was almost unbearable due to the bass overtaking/muddying the sound.
Have you tried the F87/new F22?
It was definitely an improvement for me with better clarity and flatter EQ curve
Thank you for the info. I'm new to the forum with a 2020 F87 and am wondering if I should upgrade the fronts to the etons actually. With the F45 setting, yes bass has improved substantially but the front speakers still sound harsh and fatiguing to my ears.
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      08-26-2020, 09:53 AM   #35
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Man I wish this worked on my car.
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      08-27-2020, 09:30 PM   #36
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Quote:
Originally Posted by Alpintosh View Post
Quote:
Originally Posted by H2O_Doc View Post
Before I haul my posterior to the car, in what ways is it different?
In F45, high ends are really audible from rear, like you have added extra two tweeters to the rear, which made me shift the sound to front 2-3 levels. Its not the case for F39.

Bass is similar, very balanced and deep. I lowered it by 2 levels actually.

Soundstage: F39 is more compact than F45. I would describe it like; In F45 you have two stereo speakers with 6 meters away from each other, in F39 speakers are 3 meters away. I found it less fatiguing.

Both are excellent though. One should try and choose himself.
You still on F39? With the same bass treble and fader?
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      08-27-2020, 10:01 PM   #37
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Quote:
Originally Posted by leungieF87 View Post
Thank you for the info. I'm new to the forum with a 2020 F87 and am wondering if I should upgrade the fronts to the etons actually. With the F45 setting, yes bass has improved substantially but the front speakers still sound harsh and fatiguing to my ears.

I have the Eton in the front and JL coax's in the rear. F45 REALLY opened up the entire system. the vocals sit in a space of their own -- seemingly in the middle of the dash instead of floating around between the driver and the passenger. The sound stage is much wider and spread out which helps in the overall stereo separation. The bass is much cleaner with greater overall presence.

Flat EQ -- both bass and treble in the middle position and I feel like it sounds amazing compared to F22.

Will report back on F39 shortly.

E39 put the sound way more in the front than F45 -- as if everything was coming from the front dash. Quality of the sound was similar but sticking with F45 forsure.

Last edited by GSingh; 08-27-2020 at 11:22 PM..
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      09-01-2020, 01:46 PM   #38
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Quote:
Originally Posted by nearwater4me View Post
Interesting. Do you have any aftermarket speakers?
I have the rear JL coaxials and a small powered sub in the trunk and the F45 setting was almost unbearable due to the bass overtaking/muddying the sound.
Have you tried the F87/new F22?
It was definitely an improvement for me with better clarity and flatter EQ curve
I have stock speakers and HK amp in my car. I tried the F39 setting also but the F45 sounds better overall in my opinion.

The ideal setting with F45 is to increase treble +1 and bass +2 and 20-30% fader to the rear.
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      09-01-2020, 06:28 PM   #39
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Can anyone with just the stock harmon kardon system please post their Trebble, bass, and fader settings for F45? It's not perfect with everything in the middle. Tried to tinker myself but it gets exhausting after a while. Would like to try a few settings that worked for others. Thanks!
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      09-03-2020, 08:53 PM   #40
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Quote:
Originally Posted by GSingh View Post
I have the Eton in the front and JL coax's in the rear. F45 REALLY opened up the entire system. the vocals sit in a space of their own -- seemingly in the middle of the dash instead of floating around between the driver and the passenger. The sound stage is much wider and spread out which helps in the overall stereo separation. The bass is much cleaner with greater overall presence.

Flat EQ -- both bass and treble in the middle position and I feel like it sounds amazing compared to F22.

Will report back on F39 shortly.

E39 put the sound way more in the front than F45 -- as if everything was coming from the front dash. Quality of the sound was similar but sticking with F45 forsure.
Thanks mate!

Wondering if anyone here tried etons for the rears compared with the JLs? If price isnt a huge issue, would etons be better? Thx thx
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      09-04-2020, 11:16 AM   #41
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Quote:
Originally Posted by kianf22 View Post
Can anyone with just the stock harmon kardon system please post their Trebble, bass, and fader settings for F45? It's not perfect with everything in the middle. Tried to tinker myself but it gets exhausting after a while. Would like to try a few settings that worked for others. Thanks!


Try this...

With F45 increase treble +1 and bass +2 and 20-30% fader to the rear.
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      09-04-2020, 01:21 PM   #42
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Quote:
Originally Posted by matrixhunter View Post
Quote:
Originally Posted by kianf22 View Post
Can anyone with just the stock harmon kardon system please post their Trebble, bass, and fader settings for F45? It's not perfect with everything in the middle. Tried to tinker myself but it gets exhausting after a while. Would like to try a few settings that worked for others. Thanks!


Try this...

With F45 increase treble +1 and bass +2 and 20-30% fader to the rear.
Thank you! Will try it out
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      09-04-2020, 01:39 PM   #43
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F45 is definitely better than F22 New. Punchier bass and wider sound-stage.
I currently have the Tone/Fader controls set to +1 on treble, bass and rear. I'll leave it like this for a while and see how I like it...

Thanks to the OP for sharing!
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      09-04-2020, 03:27 PM   #44
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Treble -4 bass +5.
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